quad64_2mm.scad

OW = 249;
OH = OW;

pin_dx = 41;
pin_dy = 55;

screw_dy = 45;
screw_dx = 56;

aperture = 128 - 24;

overlap = 11;
gap=.4;

$fn = 16;

module quad(dx, dy) {
    translate([+dx, +dy]) children();
    translate([-dx, +dy]) children();
    translate([-dx, -dy]) children();
    translate([+dx, -dy]) children();
}
module holes() {
    color("red") quad(screw_dx, screw_dy) circle(d=3.2);
    color("blue") quad(pin_dx, pin_dy) circle(d=3.5);
    square(aperture, center=true);
}

module body() {
    linear_extrude(height=3, center=true, convexity=12)
    difference() {
        square([OW, OH], center=true);
        quad(64, 64) holes();
    };
}

module cutter() {
    rotate([90,0,0])
    linear_extrude(height=OW+4, center=true)
    polygon([
        [-overlap, -6],
        [OW/2+1, -6],
        [OW/2+1, +6],
        [+overlap+gap, +6],
        [+overlap+gap, +0],
        [-overlap, +0],
    ]);
}

module final() {
    intersection () {
        body();
        color("orange") cutter();
    }
}

final();
%rotate([0,180,0]) render() final();